2 1/15-3/4m=59/60 решите уравнение
3/4 m = 2 1/15 - 59/60 3/4 m = 31/15 - 59/60 3/4 m = 124/60 - 59/60 3/4 m = 65/60 m =65/60 : 3/4 m = 65/45 = 13/9 m = 1 4/9
2 1/15-3/4m=59/60 3/4m=2 1/15-59/60 3/4m=13/12 m=13/12:3/4 m=13/9 2 1/15-3/4*13/9=31/15-13/12=124/60-65/60=59/60